← Wells

42-467-00548

Final Completion

SHIVERS J.R. 12

VAN ZANDT County · District 5 · UNION EXPL. PARTNERS LTD. · VAN

Permits

1

Max Depth

2,942 ft

First Permit

2005-03-25

Latest Activity

2005-03-25

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1988-10-04

Shut-In

—

Plugged

—

!

EWA / Production operator mismatch

Scheduling: UNION EXPL. PARTNERS LTD. ≠ Production: BASA RESOURCES, INC. (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: UNION EXPL. PARTNERS LTD. ≠ Permit: UNION OIL COMPANY OF CALIFORNIA

Resolved via: production → BASA RESOURCES, INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

UNION OIL COMPANY OF CALIFORNIA 1993-2020→ BASA RESOURCES, INC. 2021-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil
production & DCA →
Oil
production & DCA →

Formation Tops (3) Elevation 492 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
NACOTOCH1,160 ft-668 ft
PECAN GAP 1,750 ft-1,258 ft
AUSTIN CHALK 2,190 ft-1,698 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (2)

IntervalType
1,712–1,758 ftPerforated
2,765–2,790 ftPerforated

Casing (4)

SizeSet DepthCement
10.75"310 ft250 sx
10.75"310 ft250 sx
7"2,696 ft250 sx
7"2,696 ft250 sx

Permit History (1)

#559189 Recompletion Final Completion

SHIVERS, J. R. 12 · 2,942 ft

2005-03-25

Spud 2005-04-29

Applications (1)

#559189 A UNION OIL COMPANY OF CALIFORNIA
received 2005-03-17

Records & Logs

6 completion filings on record · 2 with log images at RRC.

W-2/G-1 2005-06-07 log on file
W-2/G-1 1989-05-03
W-2/G-1 1989-05-03
W-2/G-1 1988-11-04 log on file
W-2/G-1 1989-01-11
W-2/G-1 1984-01-12
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in VAN ZANDT County.

Well Details

Well Number
4
Max Depth
2,942 ft
Drill Type
Vertical
County
VAN ZANDT
District
5
Operator
UNION EXPL. PARTNERS LTD.
Completed
1988-10-04

Operator

Location
LOS ANGELES
P-5 Status
Inactive (filed 1989-11-09)
Total Permits
210